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greetings and peace be upon all. Hi friends . I just have a question about grow light kits. WHich one is better HPS kits or Metal halide kits? what are some of the pros and cons? And also what about HID lamps with both red and blue spectrum for the complete grow cycles? has anyone ever used...

hi guys , I just bought a 400wmetal halid light kit which includes a ballast , a bat wing reflector and a metal halid lamp. The ballast has a sticker on it that says " Metal Halid Ballast" now my deal is..can I buy a HPS lamp and use it in my kit, becuase I just assumed HID systems were...